There is no strict upper age limit for undergoing a hair transplant. However, most doctors recommend waiting until at least 25 years of age, when hair loss patterns are more stable. Younger patients may still be eligible if their baldness pattern is predictable. Older patients can undergo the procedure if they are in good health and have sufficient donor hair available. The suitability depends on donor density, scalp condition, and medical fitness. A thorough consultation helps determine if transplantation will deliver the expected natural results without interfering with potential future hair loss progression.